CURRENT DEPENDENT NOISE IN A YBA2CU3O7-DELTA HOT-ELECTRON BOLOMETER

Authors
GOUSEV YP SEMENOV AD GOGHIDZE IG PECHEN EV VARLASHKIN AV GOLTSMAN GN GERSHENZON EM RENK KF
Citation
Yp. Gousev et al., CURRENT DEPENDENT NOISE IN A YBA2CU3O7-DELTA HOT-ELECTRON BOLOMETER, IEEE transactions on applied superconductivity, 7(2), 1997, pp. 3556-3559
Citations number
11
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on applied superconductivity → ACNP
ISSN journal
10518223
Volume
7
Issue
2
Year of publication
1997
Part
3
Pages
3556 - 3559
Database
ISI
SICI code
1051-8223(1997)7:2<3556:CDNIAY>2.0.ZU;2-R
Abstract
We investigated the output noise of a YBa2Cu3O7-delta (YBCO) supercond ucting hot-electron bolometer (HEB) in a large frequency range (10 kHz to 8 GHz); the bolometer either consisted of a structured 50 nm thick YBCO film on LaAlO3 or a 30 nm thick film on a MgO substrate. We foun d that flicker noise dominated at low frequencies (below 1 MHz) while at higher frequencies Johnson noise and a current dependent noise were the main noise sources.